As reported to the FAA. Reports are unverified, and codes are left as the FAA publishes them.
What was found
AIRCRAFT WAS NOT GROUNDED: FLIGHT DIVERTED DUE TO UNCONTROLLABLE AFT CABIN TEMP FROM ROW 26-40 ZONE F TRIM SHOWS FAILED. AIRCRAFT LANDEDED OVERWIGHT AND AN EMERGENCY DECLARE. LAMNDED WITHOUT INCIDENT. MAINTENANCE REPLACED ZONE "F" TRIM AIR MODULATING VALVE IAW AMM 21-61-02.